Drum Level Indicator Our drum level indicator reads the level of media remaining in the drum in Litres. Easy to use in any drum by fastening into either the 2″ or 3/4″ bung opening. The mechanical indicator quickly and clearly provides the volume of media by use of a float scale that is suspended on the surface of the liquid in the drum or tank. The float is made of Polyethylene with a density of less than 1, allowing it to float on all liquids except for very aggressive corrosives that are not compatible with level gauge components. – Simple and effective way for accurate stock tracking and reordering points – Re-usable – Eliminate possibility of theft